Postal Codes

61811 ZIP Code

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ZIP code 61811 covers Alvin, Illinois, with a population of about 619 and a median household income of $68,750.

Population
61923 per square mile
Median age
50.311.6 points above the US average
Median household income
$68,75016% below the Illinois median
Poverty rate
8.2%4.2 points below the US average
Typical home value
$172,220up 14.9% in five years
Median rent
$90027% below the Illinois median
Degree or higher
9%26 points below the US average
Homeownership
79.7%14.7 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
3

Where 61811 is

Alvin, Illinois — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population619
Median age50.3
Family households57.7%
Born outside the US0.6%
Speaks a language other than English at home2.1%
White (non-Hispanic)98.7%
Black (non-Hispanic)0%
Asian (non-Hispanic)0.6%
Hispanic or Latino0%
Veterans9.4%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$68,750
Income per person$35,285
Poverty rate8.2%
Households on SNAP or cash assistance5.2%

Household income distribution

Under $10k1.0%
$10–15k5.2%
$15–20k0.0%
$20–25k6.6%
$25–30k4.2%
$30–35k0.7%
$35–40k2.8%
$40–45k4.9%
$45–50k7.7%
$50–60k14.3%
$60–75k6.3%
$75–100k12.2%
$100–125k24.5%
$125–150k1.0%
$150–200k8.0%
$200k or more0.3%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed280
Mean adjusted gross income$70,639
Returns declaring $200,000 or more0%
Returns, under $25k21.4%
Returns, $25k–$50k25.0%
Returns, $50k–$75k14.3%
Returns, $75k–$100k14.3%
Returns, $100k–$200k25.0%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$122,800
Median gross rent$900
Rent as a share of household income21.5%
Owner-occupied79.7%
Vacant homes12.5%
Median year built1972

What the homes are

Detached house84.1%
2 to 4 units6.4%
5 to 19 units8%
Mobile home1.5%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$172,220as of 2026-07
Typical home value, 1 yearup 7.5%
Typical home value, 5 yearsup 14.9%
Typical home value since 2000
201720212026$172,632$136,624

$136,624 in 2017 to $172,220 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.7%
Bachelor's degree or higher9%
High school diploma or higher94.8%
Works from home5.2%
Drives to work alone90.6%
Takes public transport0%
Commutes 45 minutes or more6.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity40.1% 6.7 pts above the national average of 33.4%
Diagnosed diabetes12.8% 0.8 pts above the national average of 12%
Currently smokes14.6% 1.4 pts above the national average of 13.2%
High blood pressure40.5% 6.4 pts above the national average of 34.1%
Fair or poor general health18.9% 1.4 pts below the national average of 20.3%
No health insurance (18–64)6.6% 4.7 pts below the national average of 11.3%
Depression22.4% 0.5 pts above the national average of 21.9%
No leisure-time physical activity24.1% 1.3 pts below the national average of 25.4%
Arthritis30.9% 5.8 pts above the national average of 25.1%
Binge drinking17.8% 1.8 pts above the national average of 16%
Taking blood pressure medication78.4% 3.7 pts above the national average of 74.7%
Cancer (non-skin)10.2% 2.5 pts above the national average of 7.7%
Current asthma10.3% same as the national average of 10.4%
Coronary heart disease7.8% 1.6 pts above the national average of 6.2%
Routine check-up in past year80.1% 3.4 pts above the national average of 76.7%
Cholesterol screening88.3% 2.4 pts above the national average of 85.9%
Cognitive disability13% 1.8 pts below the national average of 14.8%
Colorectal screening64.6% same as the national average of 64.3%
COPD8.4% 1.8 pts above the national average of 6.6%
Visited a dentist62.5% 1.2 pts above the national average of 61.3%
Any disability30.7% same as the national average of 30.7%
Lacks emotional support23.7% 1.1 pts below the national average of 24.8%
Food insecurity11.6% 5.5 pts below the national average of 17.1%
Received food stamps11% 3.3 pts below the national average of 14.3%
Hearing disability8.2% 1.5 pts above the national average of 6.7%
High cholesterol40.8% 4.6 pts above the national average of 36.2%
Housing insecurity9.3% 4.5 pts below the national average of 13.8%
Independent living disability8% same as the national average of 8.4%
Lacks transport6.4% 2.8 pts below the national average of 9.2%
Loneliness31.4% 3 pts below the national average of 34.4%
Mammography use70.4% 5.5 pts below the national average of 75.9%
Poor mental health (14+ days)16.4% same as the national average of 16.8%
Mobility disability15% 1 pts above the national average of 14%
Poor physical health (14+ days)14.3% 0.8 pts above the national average of 13.5%
Self-care disability3.7% same as the national average of 4%
Utility shut-off threat6% 2.8 pts below the national average of 8.8%
Sleeps under 7 hours34.5% 1.9 pts below the national average of 36.4%
Stroke3.9% 0.5 pts above the national average of 3.4%
All natural teeth lost15.4% 2.4 pts above the national average of 13%
Vision disability4.6% 1 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments3
People employed11
Annual payroll$609,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 74% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 2 census tracts this ZIP code covers
Expected annual loss83.4 out of 100
Community resilience79.8 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought97.3Relatively Moderate at its worst in this ZIP code
Cold wave92.6Relatively High at its worst in this ZIP code
Landslide91.3Relatively Low at its worst in this ZIP code
Winter weather91.2Relatively High at its worst in this ZIP code
Strong wind87.5Relatively High at its worst in this ZIP code
Hail84.6Relatively Moderate at its worst in this ZIP code
River flooding79.9Relatively High at its worst in this ZIP code
Earthquake76.2Relatively Low at its worst in this ZIP code
Tornado71.5Relatively Moderate at its worst in this ZIP code
Wildfire65.2Very Low at its worst in this ZIP code
Heat wave63.5Relatively Moderate at its worst in this ZIP code
Ice storm55.5Relatively Low at its worst in this ZIP code
Lightning53.5Relatively Moderate at its worst in this ZIP code
Hurricane48.9Very Low at its worst in this ZIP code
Compared with Illinois and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPIllinoisUnited States
Median household income$68,750$81,702$78,538
Income per person$35,285$45,104$43,289
Poverty rate8.2%11.7%12.4%
Median home value$122,800$250,500$303,400
Median gross rent$900$1,227$1,348
Homeownership79.7%66.8%65%
Bachelor's degree or higher9%37.2%35%
Unemployment rate3.7%5.8%5.2%
Works from home5.2%14%13.5%
Born outside the US0.6%14.4%13.9%
Median age50.338.938.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationDANVILLE, IL US18.3 km away
Rain in a year43 in

Average high and low by month

January35.3°F / 19.5°F2.47 in rain
February40.4°F / 22.9°F2.24 in rain
March52°F / 32.1°F3.23 in rain
April65.2°F / 42.3°F4.46 in rain
May75.3°F / 52.3°F4.63 in rain
June83.1°F / 61.3°F5.18 in rain
July85.4°F / 64.8°F4.34 in rain
August83.9°F / 63°F3.31 in rain
September78.9°F / 55.6°F3.26 in rain
October66.5°F / 44.3°F3.66 in rain
November51.9°F / 33.8°F3.7 in rain
December39.9°F / 24.9°F2.73 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Rossville-Alvin Community Unit School District 755% of this ZIP code's land area
Bismarck-Henning Consolidated Unit School District45% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability21more vulnerable than 21% of US census tracts
Socioeconomic status21more vulnerable than 21% of US census tracts
Household characteristics54more vulnerable than 54% of US census tracts
Racial and ethnic minority status15more vulnerable than 15% of US census tracts
Housing type and transport22more vulnerable than 22% of US census tracts
Walkability4.6 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

61814 Bismarck, IL5.1 km away
61848 Henning, IL7.9 km away
60963 Rossville, IL8.6 km away
47982 State Line, IN13.5 km away
47991 West Lebanon, IN14.9 km away
61834 Danville, IL16.6 km away
47993 Williamsport, IN17.4 km away
61832 Danville, IL18.2 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Vermilion County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area26.53 sq mi
Population density23 people per sq mi
Latitude, longitude40.3007, -87.6080

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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